237 citations
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14 papers · 1 filter
Dyonic Taub-NUT-AdS Black Branes: Thermodynamics and Phase Diagrams
Amr AlBarqawy, Adel Awad, Esraa Elkhateeb +1
Motivated by the recent developments in the thermodynamics of Taub-NUT spaces and the absence of Misner strings in Taub-NUT solutions with flat horizons, we investigated the phase…
Dyonic Taub-NUT-AdS Spaces: Phase Structures of all Horizon Geometries
Mohamed Tharwat, Amr AlBarqawy, Adel Awad +1
We study phase structures of Lorentzian Dyonic Taub-NUT-AdS spacetimes for different horizon geometries, which are spherical, flat, and hyperbolic. We check the consistency of our…
Topological dyonic Taub-Bolt/NUT-AdS: Thermodynamics and first law
Adel Awad, Somaya Eissa
Motivated by the absence of Misner string in the Euclidean Taub-Bolt/NUT solutions with flat horizons, we present a new treatment for studying the thermodynamics of these spactimes…
Degenerate Bogdanov-Takens bifurcations in a bulk viscous cosmology
Asmaa Abdel Azim, Adel Awad, E. I. Lashin
Using the dynamical system theory we show that the Friedmann-Robertson-Walker (FRW) cosmological model with bulk viscous fluid in the presence of cosmological constant is equivalen…
Viability of bouncing cosmology in energy-momentum-squared gravity
Ahmed H. Barbar, Adel M. Awad, Mohammad T. AlFiky
We analyze the early-time isotropic cosmology in the so-called energy-momentum-squared gravity (EMSG). In this theory, a term is added to the Einstein-Hilbert action…
Rotating charged AdS solutions in quadratic gravity
A. M. Awad, G. G. L. Nashed, W. El Hanafy
We present a class of asymptotically anti-de Sitter charged rotating black hole solutions in gravity in -dimensions, where . These solutions are nontrivial…